I'm looking at buying the truck, forgot to mention it. Looking at how the kid wrote his posting I'm betting it's a bad fuel filter and old as hell fuel. Maybe even gelled these past few days in the NE. Anything I should really look for engine trans wise? It's an 86 f250 ext cab

Just your standard truck lookover. Check the coolant, for oil, or coolant in your oil. 6.9's have fairly weak head gaskets factory, so they do blow out from time to time. Head gaskets plus head studs (ARP) are a good upgrade.

Ok. Do the 6.9s smoke much when they are cold. It's currently 20s with some pretty heavy wind. Smoked white from one of the stacks. Idk how he has them run but if it's strickly right bank could it just be it's cold unburnt fuel or coolant

How many fuel filters do I have on a 6.9. I sourced a Donaldson spin on from work but hear that there is another one. Donaldson doesn't list it referenced to ford but it is when you reference the 6.9 diesel. Part numbers would be even better if possible

Also. Is there an extra 2 or 3 inches in length for the spin on filter? Donaldson has a spin on with water drain that's about 9 inches tall. Has a 10 micron rating over the factory rated 20 micron. I would look mysel but the truck isn't in front of me at work

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